for testing and deploying your application
for finding and fixing issues
for empowering human code reviews
<?php
namespace Spatie\EloquentSortable;
class MoveModels
{
private $orderColumnName;
public function __construct($orderColumnName)
$this->orderColumnName = $orderColumnName;
}
public function __invoke($action, $moved, $displaced)
$oldPosition = $moved->{$this->orderColumnName};
$newPosition = $displaced->{$this->orderColumnName};
if ($oldPosition === $newPosition) {
return;
$positionCalculator = new PositionCalculator;
$movedAfter = $action === 'moveAfter';
$movingForward = $oldPosition < $newPosition;
$method = $movingForward ? 'decrement' : 'increment';
$moved->buildSortQuery()
->where($this->orderColumnName, '>', min([$oldPosition, $newPosition]))
->where($this->orderColumnName, '<', max([$oldPosition, $newPosition]))
->$method($this->orderColumnName);
$moved->{$this->orderColumnName} = $positionCalculator($movedAfter, $movingForward, $newPosition);
$displaced->{$this->orderColumnName} = $positionCalculator(!$movedAfter, $movingForward, $newPosition);
$moved->save();
$displaced->save();
spatie /
eloquent-sortable
